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@ARTICLE{Borchard:139992,
      author       = {Borchard, N. and Prost, K. and Kautz, T. and Moeller, A.
                      and Siemens, J.},
      title        = {{S}orption of copper ({II}) and sulphate to different
                      biochars before and after composting with farmyard manure},
      journal      = {European journal of soil science},
      volume       = {63},
      number       = {3},
      issn         = {1351-0754},
      address      = {Oxford [u.a.]},
      publisher    = {Wiley-Blackwell},
      reportid     = {FZJ-2013-05959},
      pages        = {399 - 409},
      year         = {2012},
      abstract     = {Biochar application has been suggested for reducing toxic
                      levels of metals in contaminated soils and enhancing
                      nutrient retention in agro-ecosystems. We studied sorption
                      of copper (Cu(II)) and sulphate-sulphur (SO4-S) to charcoal,
                      gasification coke and flash-pyrolysis biochar in order to
                      relate sorption to char properties. Furthermore, we
                      investigated the effect of composting of charcoal and
                      gasification coke on sorptive properties. Langmuir sorption
                      affinity coefficients for Cu(II) for non-composted biochars
                      increased in the order flash-pyrolysis char < charcoal <
                      gasification coke. The sorption capacity for Cu(II) of the
                      chars decreased in the order gasification coke (629 mg
                      kg−1) > flash-pyrolysis char (196 mg kg−1) > charcoal
                      (56 mg kg−1). Composting significantly increased the
                      sorption affinity coefficient approximately by a factor of 5
                      for charcoal (up to 1.1 l mg−1) and by a factor of 3–4
                      for gasification coke (up to 3.2 l mg−1). Whereas Cu(II)
                      sorption to gasification coke (composted or not) was largely
                      irreversible, sorption to flash-pyrolysis char and charcoal
                      showed higher reversibility. Relationships between Cu(II)
                      sorption and biochar properties such as cation exchange
                      capacity, specific surface area or aromaticity suggest that
                      sorption was largely determined by complexation with organic
                      matter. Sorption of SO4-S was negligible by non-composted
                      and composted biochars. Composted gasification coke might be
                      suited to reducing toxic Cu(II) concentrations in
                      contaminated soils. Composted charcoal can potentially
                      improve Cu(II) retention in a plant available form in
                      acidic, sandy soils with small organic matter contents.
                      Transient effects of biochars on soil pH can over-ride the
                      influence of sorption to biochars on concentrations of trace
                      elements in soil solution and their availability to plants.},
      cin          = {IBG-3},
      ddc          = {630},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {246 - Modelling and Monitoring Terrestrial Systems: Methods
                      and Technologies (POF2-246)},
      pid          = {G:(DE-HGF)POF2-246},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000304084100010},
      doi          = {10.1111/j.1365-2389.2012.01446.x},
      url          = {https://juser.fz-juelich.de/record/139992},
}